86612407063909 has 2 divisors, whose sum is σ = 86612407063910. Its totient is φ = 86612407063908.

The previous prime is 86612407063843. The next prime is 86612407063957. The reversal of 86612407063909 is 90936070421668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69359831345025 + 17252575718884 = 8328255^2 + 4153622^2 .

It is a cyclic number.

It is not a de Polignac number, because 86612407063909 - 2¹¹ = 86612407061861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86612407063409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43306203531954 + 43306203531955.

It is an arithmetic number, because the mean of its divisors is an integer number (43306203531955).

Almost surely, 2^{86612407063909} is an apocalyptic number.

It is an amenable number.

86612407063909 is a deficient number, since it is larger than the sum of its proper divisors (1).

86612407063909 is an equidigital number, since it uses as much as digits as its factorization.

86612407063909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 86612407063909 in words is "eighty-six trillion, six hundred twelve billion, four hundred seven million, sixty-three thousand, nine hundred nine".